Plaster-fastener



(No Modell.)

P. M.l LAMPSON, A. M. LANNG .85 G. W. HOGBEN.

PLASTER FASTBNER.

No. 356,945. Patented Feb. l, 1887.

ATTORNEYS,

Artnr Omron.

FOREST lll. LAMPSON, ALPHEUS M. LANING, AND GEORGE W. HOGBEN, OF RIPON, WISCONSIN.

PLASTER=FASTENER.

SPECIFICATION forming part of Letters Patent No. 356,945, dated February 1, 1887.

Application filed Octobrr 4,1886. Serial No.215,271.

To @ZZ whom it may concern:

Beit known that we, FoREsT M. LAMPsoN, ALPHEUs M. LANING, and GEORGE W. Hoe- BEN, allot Ripon, in the county of Fond du Lac and State of 1Wisconsin, have invented a new and Improved Plaster-Fastener, of which the following` is aspecification, reference being had to the annexed drawings, forming a part thereof, in Which Figure 1 is a plan view of our improved plaster-fastener. Fig. 2 is a dianietricai seotion, and Fig. 3 is an edge view', showing the application of our improved fastener` to a Wall or ceiling.

Similar letters of reference indicate corresponding` parts in all the views.

The object of our invention is to provide a simple and efi'eotive device for securing the loose plastering of Walls and ceilings.

Our invention consists in a metallic Washer formed of thin sheet meta-l, slightly convex, and provided with a countersinl; in the center thereof, formed bythoprocess of stamping.

In buildingshaving wallsand ceilings formed of lath and plaster it frequently happens that by the shrinking of the lath or the settling,` of the building the plaster becomes loose on the lath, so that it is liable at any time to be decached by slight jars, thus destroying the surface of the wall or ceiling, and necessitating replastering. By means of our improved fastener We are enabled to secure plastering loosened in this Way beforeitbeeomes cracked and disintegrated, thereby obviating the inconvenience and expense of replastering.

In carrying out our invention We form a Washer, A, of sheet metal, by the process of stamping or spinning, the Washer being preferably made of very thin metal to render it unnoticeable when applied to the wall or ceiling. In the center of the washer, around the (No model.)

screw-hole to, is formed a countersink, b, for receiving the head of the screw c, by which the Washer is applied to the Well; and to stiften I the washer and cause it to exert a pressure around its edges upon the plesteringto which it is applied, and also to canse it to out into the plastering slightly,so as to render the edge of the Washer invisible, the Washer is made outwardly convex, as shown in the drawings. 5o

The fastener is applied to the loose plastering by boring a hole through the plastering into the lath, placing the Washer A centrally over the hole, and inserting a screw through the Washer into the holein the plastering and screwing it into the lath so as to bring the Washer to a iirin bearing on thc face of the plastering. When applied in this n1anner,the Washer is rendered unnoticeable by paper epplied to the Wall or ceiling, or by calcimine 6o or paintapplied thereto in the usual Way.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patent-n 1. Aplasterfastener formed ofa sheet-metal Washer countersunk in the center thereof and made slightly convex, substantially as described.

2. The combination, in a. plaster-fastener, of the sheetnietal Washer A, having the conn- 7o tersink b in the center thereof and made outwardly convex, and the screw c, having a beveled head adapted to ili the countersink b at the center of the washer, substantially as described.

FOREST M. LAMPSON. ALPHEUS M. LANING. GEORGE TVV. HOGBEN.

Witnesses:

FREDERICK SPRATT, C. M. COOLEY. 

